Automatic Transfer Switch

Catalog

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ATO ZMQ2E Series Dual Power Automatic Transfer Switch (ATS)

ATS Type and Meaning

Applications

ZMQ2E dual power auto transfer switch

(hereinafter called ATS), is suitable for

operating in the power system of AC

50Hz, rated operating voltage 400V,

rated current 63A and below, to

perform the shift between two power

sources according to the requirement.

The product has the protection

functions of overload, short circuit,

under-voltage, etc., and provides

firefighting, dual OFF and output the

signal of closing. It is especially suitable

for the illuminating circuits of

commercial building, marketplaces,

banks, and high buildings where need

firefighting function.

Working Conditions

Altitude: no more than 2000m for the installation site.

Ambient temperature: -5℃ ~ +40℃, and the average is no more than +35℃ within 24 hours.

Relative Humidity: no more than 50% RH at the highest temperature of +40℃; higher relative humidity is allowable

at lower temperature, for example, RH could be 90% at +20℃. Some measures should be taken for the

condensation occasionally due to the temperature change.

Pollution degree: Class 3

Mounting conditions: ATS shall be mounted in the place that has no impact and vibration, as well as no access of

snow and rain.

The upper terminals of ATS are connected to power source, and the bottom terminals are connected to the load

side. The ATS sloping angle against the vertical shall not exceed 5゜.

Installation category: Ⅲ

The outer magnetic field around the mounting place shall not exceed 5 times of earth field.

ATS Structure & Working Principle

ZMQ2E dual power automatic transfer switch consists of two pieces of miniature circuit breaker, motor, controller and

drive mechanism. The ATS has three positions for users’ choice, i.e., normal power ON, dual OFF, standby power

ON. High breaking miniature circuit breaker is used for the ATS which has same performances as it is. This automatic

transfer switch features simple structure, practical, easy operation, no noise, small impact, long service life, etc.

The ATS carries out the detection for two loops of power supply by its controller. When one loop has fault, ATS

controller will give a logic decision and send a commending of closing and opening the related operating mechanism,

so as to guarantee the safe and reliability of power supply.

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llController mode

Poles (4P: 4-Pole, 3P: 3-Pole)

Special

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ATO ZMQ2E Series Dual Power Automatic Transfer Switch (ATS)

ATS Specifications

Model ATO-ZMQ2E

Use Category AC-33iB

Rated Operating Voltage Ue 220~400V AC

Rated Operating Frequency 50 Hz /60Hz

Rated Operating Current Ie (Optional) 6A, 10A, 16A, 20A, 25A, 32A, 40A, 63A

Switching Control Voltage 220V AC

Rated Insulation Voltage Ui 690V AC

Transfer Action Time <3s (preset)

Service Life Electrical 1,500 Times

Mechanical 6,000 Times

Rated Short-circuit Making Capacity Icm 7.5kA

Rated Ultimate Breaking Capacity Icu 5kA

Miniature Circuit Breaker Type (Optional) C or D (Trip characteristic)

Number of Poles (Optional) 3-Pole or 4-Pole

ATS Controller Model (Optional) Terminal type or Intelligent type

Basic parameters of terminal type and intelligent type of ATS

ATS Controller Model (Optional) Terminal type Intelligent type

Installation Method Integrated Integrated

Operation Method Auto & Manual Auto, Manual and Dual OFF

Monitoring Function Phase failure detection Three-phase under voltage, phase loss

and phase failure detection

Conversion Method Auto switch and auto reset Auto switch and auto reset

Firefighting Linkage Control N/A Dual OFF with 12-24V DC input

(Automatic cut-off function for fire)

Display Function Signal lamp indicator Signal lamp indicator

ATS Dimensions

Installation

Connected conductor for ATS

The used conductor for ATS is single core PVC insulated copper cable or equivalent copper busbar, and the cross-

sectional area is determined according to the below table.

Type External Dimensions Mounting Dimensions

L W H L1 W1 φd

4-pole ATS 220 132 120 200 120 4

3-pole ATS 185 132 120 165 120 4

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ATO ZMQ2E Series Dual Power Automatic Transfer Switch (ATS)

Rated Current (Amp) 6A 10A 16A/20A 25A 32A 40A/50A 63A

Cross-sectional area of conductor or copper busbar (mm2) 1.0 1.5 2.5 4.0 6.0 10 16

Wiring diagram of automatic transfer switch

1. ATS with 3-pole circuit breaker 2. ATS with 4-pole circuit breaker

Wiring diagram of ATS output terminals

1. Terminal-type ATS output ends wiring

2. Intelligent-type ATS output ends wiring

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ATO ZMQ2 Series Dual Power Automatic Transfer Switch (ATS)

ATS Type and Meaning

Applications

ZMQ2/F series intelligent self-protection dual power

automatic transfer switch (hereinafter referred to ATS) is

suitable for rated working voltage AC 400V, 50Hz, rated

current 16A ~2000A. This ATS is used as mutual

conversion between common power supply (N) and

standby power supply (R) in emergency power supply

system (can also be set manually.) and also as a switch to

control circuit with functions of controlling, signaling,

interlocking, etc. Some models of this series ATS are

designed with communication port, which enables remote

control; that is to say, it allows users to achieve

unattended substation. The ATS is suitable for residential

areas, military facilities, hospitals, shopping malls, airports

and other places.

Working Conditions

Altitude: no more than 2000m for the installation site.

Ambient temperature: -5℃ ~ +40℃, and the average is no more than +35℃within 24 hours.

Relative Humidity: no more than 50% RH at the highest temperature of+40℃; Higher relative humidity is allowable

at lower temperature. Some measures should be taken for the condensation occasionally due to the temperature

change.

Mounting conditions: ATS shall be mounted in the place that has no explosive medium, as well as no impact and

vibration.

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ATO ZMQ2 Series Dual Power Automatic Transfer Switch (ATS)

Main Technical Data

Type ZMQ2F/L-100/3 ZMQ2F/L-225/3 ZMQ2F/L-400/3 ZMQ2F/L-630/3 ZMQ2F/L-800/3 ZMQ2F/L-1250/3

ZMQ2F/L-100/4 ZMQ2F/L-225/4 ZMQ2F/L-400/4 ZMQ2F/L-630/4 ZMQ2F/L-800/4 ZMQ2F/L-2000/3

Frame Current (A) 100 225 400 630 800 2000

Rated Operating

Current (A)

10, 16, 20, 32, 40,

50, 63, 80, 100

100, 125, 140,

160, 180, 200, 225

200, 250, 315,

350, 400

250, 315, 350,

400, 500, 630

630, 700, 800 1250, 1600, 2000

Rated Working

Voltage 400V

Insulation Voltage 2500V, no flicker and no breakdown for one minute

Frequency 50~60Hz

Delay Time 0~30s (Adjustable)

Rated Working

Voltage of

Controller

AC 230V

Mechanical Life 5,000 times

ATS Dimensions (Split & integrated type)

ATS Structure

T he intelligent ATS mainly consists of two parts: microcomputer controller and switching device, and a dedicated cable

connects between the two.

More specifically, the switch is constituted of microcomputer controller, micro-motors, gear machine, micro switch,

keyboard, LGD display, molded case circuit breakers and other components. It features automatic and manual o peration,

machinery and electrical double interlock, so as to meet supply and distribution needs to maximum extent. T here are three

switching positions at working for users’ selection: common power supply (N) ON, Dual OFF, standby power (R) ON. The

ATS has small size, light weight, stable running, and easy operation.

Type W W1 L L1 H

ZMQ2F/L-100/3 390 350 210 190 120

ZMQ2F/L-100/4 495 460 210 190 135

ZMQ2F/L-225/3 430 395 215 195 140

ZMQ2F/L-225/4 545 510 215 195 140

ZMQ2F/L-400/3 565 510 310 285 190

ZMQ2F/L-400/4 635 585 320 285 190

ZMQ2F/L-630/3 630 575 320 295 195

ZMQ2F/L-630/4 715 665 320 295 195

ZMQ2F/L-800/3 710 655 335 315 190

ZMQ2F/L-800/4 785 725 335 315 190

ZMQ2F/L-1250/3 735 680 480 365 280

ZMQ2F/L-2000/3 800 750 480 365 280

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ATO ZMQ2 Series Dual Power Automatic Transfer Switch (ATS)

ATS Installation

*The above wiring diagram is just for your reference. With the different types and functions, the wiring is also different.

*When the fire takes place, EPS signal is on (provided by firefighting center) and the circuit breakers Q1 & Q2 is released

or cut off.

*Q1 and Q2 refer to circuit breakers.

*KG refers to the wiring terminals.

*The R & N power ON indicator lamp is external (provided by users).

*The dashed part is supplied by users.

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For power grids

For power grid and electric generator

For power grid and power grid + firefighting

For power grid and power grid + firefighting

Normal ON

Standby ON

Normal power

standby power

Dual ON

Normal power

Normal power

Normal power

standby power

standby power

standby power

Normal ON

Normal ON

Normal ON

Standby ON

Standby ON

Standby ON

Dual ON

Dual ON

Dual ON

Generator

Generator

DC 24V Firefighting

DC 24VFirefighting

Tips: 3P - 3 pole circuit breaker, 4P - 4 pole circuit breaker; DC 24V (external) is provided by firefighting center.

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ATO ZMQ5 Series Dual Power Automatic Transfer Switch (ATS)

Main Technical Data

Basics

Rated Operating Voltage (Ue): AC 400V

Rated Insulation Voltage (Ue): AC 690V

Rated Operating Current (Ie): 100~3200A

Control Supply Voltage: DC 24V, DC 48V, AC 230V

Complied Standard: IEC6094-6-1, GB14048.11-2008

ATS Poles (Optional): 3-pole or 4-pole

Controller Mode (Optional): type I, type II, or type III

Application

Auto transfer switching equipment (ATSE) or Automatic

transfer switch (ATS) is a device that integrates the

switching function with logic control, to realize

electromechanical integration function. It is suitable for

the distribution system of AC 50Hz, rated voltage 400V

and conventional thermal current up to 1600A in mineral

and other enterprises. This ATS has voltage detection,

forcedly switching off “0” position, manual operation for

emergency and so on. It can be widely used to shift

between normal power and standby power or two loading

equipment, or perform safe isolation, etc. The control

circuit board of ATS will govern the motor through logic

commands and then the motor will drive the operating

mechanism of main body of ATS, to quickly connect or

disconnect the circuit or switch the between, so that the

safe isolation of main switch is obviously achieved.

ATS Type

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ATO ZMQ5 Series Dual Power Automatic Transfer Switch (ATS)

Specification

Conventional Thermal Current (A) 100 160 250 400 630 1000 1250 1600 2000 2500 3200

Rated Insulation Voltage 750V 1000V

Rated Impulse Withstand Current 8kV 12kV

Rated

Operating

Current (A)

AC-31A 100 160 250 400 630 1000 1250 1600 2000 2500 3200

AC-35A 100 160 250 400 630 1000 1250 1600 2000 2500 3200

AC-33A 100 160 250 400 630 1000 1250 1600 2000 2500 3200

Rated Short-time Withstand Current 7kV 9kV 13kV 50kV 55kV

Rated Short-circuit Current Limit 100kA 70kA 100kA 120kA 80kA

Control Supply Voltage DC 24V, 48V, AC 110V, 220V

Conversion Time (s) 0.5 1 1.1 1.2 1.25 2.45

ATS Wiring Diagram & Mounting

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Use a small flathead screwdriver to push downside and connect the wires as the above figure shows.

Ⅰloop power supply(Normal)

Ⅱloop power supply(Standby)

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ATO ZMQ5 Series Dual Power Automatic Transfer Switch (ATS)

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ATS Dimensions

Electrical control connection area

Max. rotation rangeof the handle

ATO ZMQ5 Series Dual Power Automatic Transfer Switch (ATS)

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Terminal Diagram

Output